Royal Purple 31530 High Performance Street Synthetic Motor Oil - 1 Quart Bottle

Crude oil serves as the primary source for manufacturing motor oil, which is used to lubricate, clean, and cool engines. Various types of motor oil exist, including conventional, synthetic, diesel, bio-based, hybrid (blends of conventional and synthetic), and recycled oils. These motor oils differ in their weight, viscosity, and the additives that some manufacturers incorporate during the refining process.

The Society of Automotive Engineers (SAE) has developed a numerical code system to grade motor oils based on their viscosity. The higher the number between 0 and 60, the more viscous (thicker) the oil. Typically, consumer motor oils are graded with two numbers, where the first number indicates the oil's performance in cold weather (Winter or "W") conditions.

For example, an SAE 5W-30 oil has a viscosity rating of 5 in cold temperatures and a rating of 30 at normal operating temperatures. This oil is considered fully synthetic, meaning it is not made from crude oil. Synthetic oils often provide superior mechanical performance compared to traditional motor oils, including increased fuel efficiency and reduced engine wear at extreme temperatures. However, the complex manufacturing process can make synthetic oils more expensive than conventional motor oils.

One specific motor oil, the Royal Purple HPS Series, is formulated to maximize performance and meet the demands of high-performance and modified engines. Fortified with a high level of zinc/phosphorus anti-wear additive and proprietary Synerlec additive technology, this unique blend outperforms leading synthetics and conventional lubricants. Available viscosities include 5W-20, 5W-30, 10W-30, 10W-40, and 20W-50. The HPS Series is recommended for vehicles no longer under manufacturer warranty and for those seeking a higher level of performance and protection.

The advanced additive technologies in the Royal Purple HPS Series, such as Synerlec, improve the condition of metal-to-metal contact under severe conditions, providing greater protection. Additionally, the oil responds to increased pressure with increased viscosity, offering maximum wear protection and exceptional oxidation stability. This, in turn, can lead to increased horsepower and torque. For optimal performance, it is recommended to follow the manufacturer's guidelines outlined in the vehicle owner's manual.

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